Roll collar mandrel dismounting and mounting device

Abstract

The utility model relates to the technical field of roll collar disassembly and assembly, in particular to a roll collar mandrel disassembly and assembly device. The utility model discloses a roll collar mandrel disassembling and assembling device which comprises a machine frame, a first through cavity is formed in a disassembling and assembling working area of the machine frame, a partition plate located on the first through cavity is arranged in the disassembling and assembling working area of the machine frame, a second through cavity with the diameter smaller than that of the first through cavity is formed in the partition plate, and a disassembling and assembling mechanism is arranged on the machine frame. A resistance mechanical arm capable of moving in the axis direction of the roll collar is arranged on the side, close to the disassembling and assembling mechanism, of the rack, and the clamping end of the resistance mechanical arm comprises two clamping jaws used for clamping and fixing the roll collar and a power mechanism used for driving the two clamping jaws to be close to each other. The device has the advantage that the service life of the whole device can be prolonged by sharing the acting force required when the roller ring and the core shaft are disassembled and assembled through the auxiliary mechanism.

Description

Technical Field

[0001] This utility model relates to the field of roller ring disassembly and assembly technology, specifically a roller ring mandrel disassembly and assembly device. Background Technology

[0002] Chinese patent application No. 202320678769.3 discloses a device for disassembling and assembling a roller ring and a mandrel, including a worktable for placing the roller ring. The worktable has a through hole running vertically through it. An upper lifting mechanism is provided above the worktable, and a lower lifting mechanism is provided below the worktable. Both the upper and lower lifting mechanisms have lifting rods. The lifting rods and the through hole are coaxially arranged. The lower end of the lifting rod of the upper lifting mechanism has a first contact portion, and the upper end of the lifting rod of the lower lifting mechanism has a second contact portion. The first contact portion is detachably provided at the lower end of the lifting rod of the upper lifting mechanism, and the second contact portion has a positioning protrusion for engaging with a tapered groove on the end face of the mandrel.

[0003] In the above technical solution, the second contact part of the lower lifting mechanism is brought into contact with the mandrel, and the upper lifting mechanism is deviated from the through hole and gradually moved down through the first contact part to press out the mandrel, thereby achieving the separation of the mandrel in the roller ring. However, in the above technical solution, the reaction force generated by the thrust of separating the roller ring and the mandrel acts on the connection between the upper lifting mechanism and the lower lifting mechanism and the worktable. Since the force required to separate the roller ring and the mandrel is approximately two tons, the connection between the upper lifting mechanism and the lower lifting mechanism and the worktable is deformed under pressure, affecting the service life of the connection between the upper lifting mechanism and the lower lifting mechanism and the worktable, thereby affecting the overall service life of the device. Utility Model Content

[0004] The purpose of this invention is to provide a roller ring and mandrel disassembly and assembly device that can distribute the force required for disassembling and assembling the roller ring and mandrel through an auxiliary mechanism, thereby protecting the overall service life of the device.

[0005] To achieve the above objectives, this utility model discloses a roller ring mandrel disassembly and assembly device, including a frame. The disassembly and assembly working area of ​​the frame is provided with a first through cavity. The disassembly and assembly working area of ​​the frame is provided with a partition plate located on the first through cavity. The partition plate is provided with a second through cavity with a diameter smaller than the first through cavity. The frame is provided with a disassembly and assembly mechanism. The side of the frame near the disassembly and assembly mechanism is provided with a resistance mechanical arm that can move along the roller ring axis. The clamping end of the resistance mechanical arm includes two jaws for clamping and fixing the roller ring and a power mechanism for driving the two jaws to move closer to each other.

[0006] When it is necessary to separate the roller ring and the mandrel, place the roller ring with the mandrel on the partition and align the mandrel with the second cavity. Adjust the position of the resistance robotic arm and start the power mechanism. The power mechanism brings the two grippers closer together to clamp and fix the roller ring with the mandrel. Then, further correct the position of the roller ring. After starting the disassembly and assembly mechanism, the disassembly and assembly mechanism pushes the mandrel located in the center position downward along the axial direction of the roller ring. At the same time, control the resistance robotic arm to apply force upward along the axial direction of the roller ring. Thus, the force required for the separation of the roller ring and the mandrel is applied to the connection between the disassembly and assembly mechanism and the frame and the connection between the resistance robotic arm and the frame, respectively.

[0007] This invention introduces a resistance robotic arm as an auxiliary mechanism, which works in conjunction with the disassembly and assembly mechanism during the disassembly and assembly process to distribute the reaction force generated when the roller ring and mandrel are separated. This optimizes the force-bearing structure, reduces the stress on the disassembly and assembly mechanism as a single force-applying component, and reduces the maintenance and replacement costs caused by component deformation or damage. As a result, the durability of the device is improved. This invention has the advantage of being able to distribute the force required to disassemble and assemble the roller ring and mandrel through the auxiliary mechanism, thereby protecting the overall service life of the device.

[0008] The connection between the two grippers of the resistance robotic arm can be either hinged together or slidably connected within the resistance robotic arm; the power mechanism can be any existing power device that can move back and forth along a set trajectory to bring the two grippers closer to each other, such as an electric push rod module or an electric lead screw module.

[0009] Preferably, the frame is provided with an electric lead screw module parallel to the axis of the roller ring to be disassembled and assembled. The lead screw of the electric lead screw module is threadedly connected to a lifting platform, which is used to connect to the resistance robotic arm.

[0010] The resistance robotic arm is raised and lowered by an electric screw module. After clamping and fixing the roller ring, it applies upward force along the axial direction of the roller ring, thereby distributing the reaction force generated when the roller ring and the mandrel separate. The force is applied through the thread to reduce the overload damage caused by the reaction force.

[0011] Preferably, the two grippers are close to each other at one end in a V-shape, and the width of the two grippers along the axis of the roller ring matches the axial height of the roller ring to be disassembled or assembled.

[0012] The V-shaped grippers hold the outer surface of the roller ring, enabling it to hold roller rings of different specifications, thus improving the applicability of the device.

[0013] Preferably, the disassembly and assembly mechanism includes two columns mounted on the frame and a horizontal beam fixed on the two columns. The horizontal beam is equipped with a hydraulic cylinder for applying thrust to the mandrel, and the direction of movement of the thrust end of the hydraulic cylinder coincides with the direction of the mandrel axis.

[0014] The gantry structure, consisting of two columns and a horizontal beam, ensures the structural stability of the hydraulic cylinder during operation.

[0015] Preferably, the connection between the horizontal beam and the two columns is provided with reinforcing ribs to prevent stress concentration on the horizontal beam during hydraulic cylinder operation, which could lead to deformation of the horizontal beam.

[0016] Preferably, the frame is provided with limiting rails on both sides corresponding to the column, and the column is slidably mounted on the limiting rails. The limiting rails enable a sliding connection between the column and the frame, dividing the frame table into a disassembly / assembly station and a standby station, preventing the hydraulic cylinder from starting when placing the roller ring and causing safety hazards.

[0017] Preferably, a conveyor belt is provided on the side of the frame near the limiting rail, and a pulley for driving the conveyor belt to rotate and a drive motor for driving the pulley to rotate are provided on the frame, and the column is fixedly connected to the conveyor belt.

[0018] By driving the belt to rotate, the column is moved along the limit track, achieving automatic translation and reducing the workload of operators.

[0019] The column and the drive belt can be fixed by means of fixing bolts, clips, or by using a toothed belt with a pressing cover plate that can mesh with the belt teeth.

[0020] Preferably, the partition has at least two partitions with different diameters of the second passage cavity between them. By setting different specifications of the second passage cavity, the partition can be adapted to roller rings and mandrels of different specifications, thereby improving the applicability of the device.

[0021] This invention can distribute the reaction force generated when the roller ring and mandrel separate, optimize the force structure, and prevent the reaction force from being concentrated between the column and the limiting track, thereby improving the durability of the limiting track. It has the advantage of being able to distribute the force required to disassemble and assemble the roller ring and mandrel through an auxiliary mechanism to protect the overall service life of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0023] Figure 2 This is a structural schematic diagram of the present invention from another angle.

[0024] Figure 3 This is a schematic diagram of the frame and partition of this utility model.

[0025] In the diagram: 11. Frame; 12. First cavity; 13. Partition; 14. Second cavity; 15. Electric lead screw module; 151. Lead screw; 16. Lifting platform; 17. Resistance robotic arm; 171. Fixed gripper; 172. Movable gripper; 173. Power push rod; 18. Column; 19. Horizontal beam; 20. Reinforcing rib; 21. Hydraulic cylinder; 22. Limiting rail; 23. Conveyor belt; 24. Pulley; 25. Drive motor. Detailed Implementation

[0026] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0027] Depend on Figure 1 As shown, this embodiment discloses a roller ring mandrel disassembly and assembly device, including a frame 11. A first through cavity 12 is provided in the disassembly and assembly working area of ​​the frame 11. Several sets of partitions 13 are located on the first through cavity 12 in the disassembly and assembly working area of ​​the frame 11. Figure 3 As shown, the partition 13 is provided with a second through cavity 14 with a diameter smaller than that of the first through cavity 12. The diameters of the second through cavities 14 between several sets of partitions 13 are different. The frame 11 is provided with a disassembly and assembly mechanism. The frame 11 is provided with an electric screw module 15 parallel to the axis of the roller ring to be disassembled and assembled. The screw 151 of the electric screw module 15 is threadedly connected to a lifting platform 16. The lifting platform 16 is provided with a resistance mechanical arm 17 that can move along the axis of the roller ring. The clamping end of the resistance mechanical arm 17 includes two V-shaped jaws for clamping the fixed roller ring and a power push rod 173 for driving the two V-shaped jaws to approach each other. The two V-shaped jaws include a fixed jaw 171 fixedly mounted on the resistance mechanical arm 17 and a movable jaw 172 hinged to the resistance mechanical arm 17. The power push rod 173 can drive the movable jaw 172 to approach the fixed jaw 171. The width of the two V-shaped jaws along the axis of the roller ring matches the axial height of the roller ring to be disassembled and assembled.

[0028] The disassembly and assembly mechanism includes two columns 18 mounted on the frame 11 and a horizontal beam 19 fixed on the two columns 18. A reinforcing rib 20 is provided at the connection between the horizontal beam 19 and the two columns 18. A hydraulic cylinder 21 for applying thrust to the mandrel is provided on the horizontal beam 19. The direction of movement of the thrust end of the hydraulic cylinder 21 coincides with the direction of the mandrel axis.

[0029] Limiting rails 22 are provided on both sides of the frame 11 corresponding to the column 18. The column 18 is slidably mounted on the limiting rails 22. A conveyor belt 23 is provided on the side of the frame 11 near the limiting rails 22. A pulley 24 for driving the conveyor belt 23 to rotate and a drive motor 25 for driving the pulley 24 to rotate are provided on the frame 11. The column 18 and the conveyor belt 23 are fixedly connected.

[0030] Depend on Figure 2As shown, when the roller ring and mandrel need to be separated, the roller ring with the mandrel is placed on the partition 13, with the mandrel facing the second through cavity 14. The resistance robotic arm 17 is raised and lowered by the electric screw module 15, thereby adjusting the position of the resistance robotic arm 17. The power push rod 173 is activated, which drives the movable gripper 172 to move closer to the fixed gripper 171, thereby clamping and fixing the roller ring with the mandrel. The position of the roller ring is further corrected. The hydraulic cylinder 21 is activated, and the power end of the hydraulic cylinder 21 descends and moves along the axial direction of the roller ring. The mandrel located at the center position is pushed down. At the same time, the electric screw module 15 reverses to raise the resistance robotic arm 17. The resistance robotic arm 17 applies an upward force to the roller ring by clamping the V-shaped jaws. After the roller ring and mandrel are separated by force, they fall out of the second cavity 14. Thus, the force required for the separation of the roller ring and mandrel is applied to the connection between the column 18 and the limiting track 22 and the connection between the resistance robotic arm 17 and the electric screw module 15, thereby reducing the force on the two columns 18 and the limiting track 22 and optimizing the force structure.

Claims

1. A roller ring mandrel disassembly and assembly device, comprising a frame, wherein a first through cavity is provided in the disassembly and assembly working area of ​​the frame, a partition plate is provided in the disassembly and assembly working area of ​​the frame on the first through cavity, and a second through cavity with a diameter smaller than the first through cavity is provided on the partition plate, and a disassembly and assembly mechanism is provided on the frame, characterized in that: The frame is provided with a resistance mechanical arm that can move along the axis of the roller ring on the side near the disassembly and assembly mechanism. The gripping end of the resistance mechanical arm includes two jaws for gripping and fixing the roller ring and a power mechanism for driving the two jaws to move closer to each other.

2. The roller ring mandrel disassembly and assembly device according to claim 1, characterized in that: The frame is equipped with an electric lead screw module parallel to the axis of the roller ring to be disassembled and assembled. A lifting platform is threaded onto the lead screw of the electric lead screw module, and the lifting platform is used to connect to the resistance robotic arm.

3. The roller ring mandrel disassembly and assembly device according to claim 2, characterized in that: The two grippers are close to each other at one end in a V-shape, and the width of the two grippers along the axis of the roller ring matches the axial height of the roller ring to be disassembled or assembled.

4. A roller ring mandrel disassembly and assembly device according to claim 1, 2, or 3, characterized in that: The disassembly and assembly mechanism includes two columns mounted on the frame and a horizontal beam fixed on the two columns. A hydraulic cylinder for applying thrust to the mandrel is mounted on the horizontal beam, and the direction of movement of the thrust end of the hydraulic cylinder coincides with the direction of the mandrel axis.

5. The roller ring mandrel disassembly and assembly device according to claim 4, characterized in that: The horizontal beam is reinforced at the connection point with the two columns.

6. The roller ring mandrel disassembly and assembly device according to claim 5, characterized in that: The frame is provided with limiting rails on both sides corresponding to the column, and the column is slidably mounted on the limiting rails.

7. The roller ring mandrel disassembly and assembly device according to claim 6, characterized in that: A conveyor belt is provided on the side of the frame near the limiting rail. The frame is equipped with a pulley for driving the conveyor belt to rotate and a drive motor for driving the pulley to rotate. The column is fixedly connected to the conveyor belt.

8. The roller ring mandrel disassembly and assembly device according to claim 1, characterized in that: The partition has at least two partitions, and the diameters of the second passage cavities between the partitions are different.

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